The MK4 Cortina - Specification

 

Engine Type 1300 OHV Economy 1600 OHC Economy 1600 OHC 2000 OHC
Dimensions
Bore 80.98mm 87.65mm 87.65mm 90.80mm
Stroke 66.00mm 66.00mm 66.00mm 76.95mm
Displacement 1298cc 1593cc 1593cc 1998cc
Compression ratio 9.2:1 9.2:1 9.2:1 9.2:1
Octane Rating 97 97 97 97
Maximum Power PS (DIN) 49.5 59 72 98
At Engine Speed (rpm) 5000 4500 5000 5200
Maximum Torque (MKP) 8.8 11.3 12.0 15.4
At Engine Speed (rpm) 3000 2600 2700 3500
Construction        
Cylinder Block Cast Iron
Main bearings 5: 57mm diameter
Crankshaft Cast modular graphite iron
Pistons Cast aluminium alloy; two compression rings and one three piece oil control ring
Cylinder Head cast iron with valves operated by push rods and rockers cast iron with single overhead camshaft driven by toothed reinforced belt
Engine Weight (without transmission, clutch and oil) 110kg 129kg 129kg 134kg
Fuel System        
Pump Direct acting mechanical diaphragm type push rod operated driven by eccentric on auxiliary shaft
Carburettor, make Ford Ford Ford Weber
Carburettor, type Sonic idle, single venturi downdraught Twin venturi sequential downdraught
Transmission        
Clutch type cable operated diaphragm-spring single dry plate
Clutch diameter 7.5 ins 7.5 ins 7.5 ins 8.5 ins
Gearbox ratios: 1st 3.58 3.58 3.58 3.64
2nd 2.01 2.01 2.01 1.97
3rd 1.40 1.40 1.40 1.37
top 1.00 1.00 1.00 1.00
reverse 3.32 3.32 3.32 3.66
rear axle ratio: saloon 4.11 3.78 3.89 3.75
estate     4.11 3.75
Gearbox

Four speed, synchromesh manual
(Three speed Ford C3 automatic available as option on 1600 regular and 2000 engines)

Suspension        
Front: Type

Independent. Short and long arm, coil springs and anti roll bar, telescopic shock absorbers

Independent. Short and long arm, coil springs and anti roll bar. Gas filled shock absorbers
Wheel  travel (total) 7.04 ins
 rate 84 lb/in (98 lb/in on 'S' models)
Rear Type Four bar link. Variable rate coil springs & anti roll bar. Telescopic shock absorbers.

Four bar link. Variable rate coil springs & anti roll bar. Gas filled shock absorbers.

Wheel  travel (total) 8.6 ins
 rate saloon 108/253 lb/in (121/259 lb/in on 'S' models)
 rate estate 111/244 lb/in
Engine Type 1300 OHV Economy 1600 OHC Economy 1600 OHC 2000 OHC
Brakes
Type Dual-line hydraulic circuits with front discs and rear drum brakes
Servo Vacuum type - 7 inch single diaphragm
Front, diameter 9.75 ins
Rear, diameter 8 ins 8 ins 8 ins 9ins
Steering        
Type

Rack and pinion

Ratio 18.7
Number of turns, lock to lock 3.7
Turning circle, kerb to kerb

32.5 feet

Wheels and tyres          
Wheels: Type Pressed steel styled road wheels (Sports road wheels on 'S' & 'Ghia' models
Size 4.5 in x 13 in (5.5 in x 13 in on 'S' & 'Ghia' models)
Tyres: Type radial ply tubeless
Size 165 SR-13 in (185/70 SR-13 on 'S' and 'Ghia' models)
  Pressures (psi)
VEHICLE TYPE TYRE SIZES normal laden pressures (1)
normal usage (3)
fully laden pressures (2)
normal usage (3)
    FRONT REAR FRONT REAR
Saloons 165 SR 13 26 26 28 36
185/70 SR13 23 23 26 30
Estates 165 SR 13 26 26 28 40
185/70 SR13 23 24 26 33
Notes: (1) Normal laden tyre pressures apply when the vehicle is loaded with up to 3 persons
(2)  Fully laden tyre pressures apply when the vehicle is loaded in excess of the normal laden conditions and up to the maximum rated loaded condition
(3) Normal usage is defined as usage on all roads at all speeds where high speed (100 mph) is not sustained for more than approximately 30 minutes at any one time.
(4)The tyre pressures shown above should be used when the tyre is cold i.e. when approximately at an ambient temperature, not warm to the touch as is usual after operation.
Bodywork        
Type

Unitary construction welded steel body

Electrics        
Battery type Lead acid
voltage 12 volt
capacity 38 ah 38 ah 38 ah 44 ah
Alternator capacity 35 ah (45 ah on 'L', 'GL', 'S' and 'Ghia' models)
earth polarity negative
Capacities        
petrol tank

12 gallons

oil (including oil filter) 5.7 pints 6.2 pints 6.2 pints 6.2 pints
water cooling system 8.7 pints 10.1 pints 10.1 pints 10.8 pints
Service interval 6000 miles
 

 

 

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